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IMPROVED PUNCHING APPARATUS.

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TO ALL WHOMA IT MAY CONCERN: 4

Be it known that L THEODORE E. HARRIS, of Green Bay, in the county ofBrown, and State of Wisconsin, have invented a new and useful Apparatusfor Punching Holes in Shingle-Straps, so called; and I do declare thatthe following is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawing, making a part of this specification, in which- Figure 1is a. perspective view, showing a machine for cutting sheet iron andother. metals, to which-my punches are attached.

Figure?, a perspective view of one of the punches al with screw a toattach it to the cutter-bar of the machine7 with the punches fixed inplace b b, and a section of the bed-plate ot' the cutting machine c,showing the holes corresponding to the punches.

This punching apparatus is madeof wrought iron, except the punches,themselves, which are of steel. They are attached by screws, as shown,to the cutter-bar of the cutting machine, and their operation is thepunching of twoholes in each end of the shingle-strap at each downwardmovement of the cutter in cutting off the strap from the sheet of ironor other metal.

I claim the improved punching apparatus, substantially as hereindescribed, and for the purpose set forth.

T. E. HARRIS.

Witnesses:

CHAs. D. ROBINSON, C. D. SUYDAM.

